The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Sunday, December 8, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Mon 09 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 468854
Prefixes after maximum aggregation: 188476
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234686
Total ASes present in the Internet Routing Table: 45478
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 35427
Origin ASes announcing only one prefix: 16275
Transit ASes present in the Internet Routing Table: 5796
Transit-only ASes present in the Internet Routing Table: 153
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 36
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1117
Unregistered ASNs in the Routing Table: 301
Number of 32-bit ASNs allocated by the RIRs: 5478
Number of 32-bit ASNs visible in the Routing Table: 4255
Prefixes from 32-bit ASNs in the Routing Table: 13285
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1340
Number of addresses announced to Internet: 2657210876
Equivalent to 158 /8s, 97 /16s and 209 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162647

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110082
Total APNIC prefixes after maximum aggregation: 33498
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112309
Unique aggregates announced from the APNIC address blocks: 47864
APNIC Region origin ASes present in the Internet Routing Table: 4840
APNIC Prefixes per ASN: 23.20
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 827
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 776
Number of APNIC addresses announced to Internet: 729000700
Equivalent to 43 /8s, 115 /16s and 170 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 161187
Total ARIN prefixes after maximum aggregation: 81247
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 161993
Unique aggregates announced from the ARIN address blocks: 75261
ARIN Region origin ASes present in the Internet Routing Table: 15858
ARIN Prefixes per ASN: 10.22
ARIN Region origin ASes announcing only one prefix: 6002
ARIN Region transit ASes present in the Internet Routing Table: 1617
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 43
Number of ARIN addresses announced to Internet: 1072859136
Equivalent to 63 /8s, 242 /16s and 136 /24s
Percentage of available ARIN address space announced: 56.8

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 119217
Total RIPE prefixes after maximum aggregation: 61102
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123068
Unique aggregates announced from the RIPE address blocks: 79022
RIPE Region origin ASes present in the Internet Routing Table: 17521
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8292
RIPE Region transit ASes present in the Internet Routing Table: 2776
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2513
Number of RIPE addresses announced to Internet: 656224256
Equivalent to 39 /8s, 29 /16s and 48 /24s
Percentage of available RIPE address space announced: 95.4

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 196608-200191
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52534
Total LACNIC prefixes after maximum aggregation: 9816
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 57763
Unique aggregates announced from the LACNIC address blocks: 27424
LACNIC Region origin ASes present in the Internet Routing Table: 2039
LACNIC Prefixes per ASN: 28.33
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 384
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 36
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 916
Number of LACNIC addresses announced to Internet: 146134784
Equivalent to 8 /8s, 181 /16s and 215 /24s
Percentage of available LACNIC address space announced: 87.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11731
Total AfriNIC prefixes after maximum aggregation: 2587
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12381
Unique aggregates announced from the AfriNIC address blocks: 4059
AfriNIC Region origin ASes present in the Internet Routing Table: 689
AfriNIC Prefixes per ASN: 17.97
AfriNIC Region origin ASes announcing only one prefix: 205
AfriNIC Region transit ASes present in the Internet Routing Table: 136
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 48541184
Equivalent to 2 /8s, 228 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2162 11551 653 Korea Telecom (KIX)
7545 2113 319 110 TPG Internet Pty Ltd
4755 1795 392 190 TATA Communications formerly
9829 1540 1246 45 BSNL National Internet Backbo
9583 1418 113 570 Sify Limited
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
4808 1040 1945 304 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2299 2939 138 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
20115 1680 1656 596 Charter Communications
4323 1648 1114 419 Time Warner Telecom
701 1505 11144 778 MCI Communications Services,
30036 1380 311 580 Mediacom Communications Corp
7018 1327 17779 866 AT&T WorldNet Services
6983 1292 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1929 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1193 452 897 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 794 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3411 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1734 1161 229 Telecom Argentina Stet-France
18881 1709 908 20 Global Village Telecom
8151 1352 2852 420 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 825 94 91 Telconet S.A
6147 791 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 773 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
29571 250 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3411 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2299 2939 138 Cox Communications, Inc.
4766 2162 11551 653 Korea Telecom (KIX)
7545 2113 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
8402 1929 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2720 2632 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2299 2161 Cox Communications, Inc.
7545 2113 2003 TPG Internet Pty Ltd
1785 2048 1917 PaeTec Communications, Inc.
8402 1929 1913 OJSC "Vimpelcom"
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1709 1689 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:937 /15:1641 /16:12863 /17:6782 /18:11179
/19:23077 /20:32890 /21:35557 /22:50078 /23:43690 /24:249057
/25:45 /26:33 /27:50 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1639 1929 OJSC "Vimpelcom"
22773 1551 2299 Cox Communications, Inc.
30036 1220 1380 Mediacom Communications Corp
11492 1183 1224 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1292 ITC^Deltacom
22561 965 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:924 2:859 3:3 4:16 5:808 6:21
8:610 12:1879 13:3 14:879 15:11 16:3
17:19 18:19 20:25 23:613 24:1756 27:1716
31:1513 32:45 33:2 34:5 36:96 37:1942
38:898 39:5 40:181 41:3252 42:229 44:13
46:2058 47:10 49:698 50:864 52:12 54:44
55:4 56:4 57:26 58:1091 59:583 60:368
61:1469 62:1210 63:1974 64:4327 65:2330 66:4139
67:2091 68:1078 69:3153 70:850 71:502 72:1981
74:2550 75:324 76:304 77:1217 78:1014 79:668
80:1277 81:1038 82:630 83:753 84:584 85:1254
86:381 87:1034 88:548 89:1567 90:154 91:5718
92:622 93:1608 94:2113 95:1540 96:418 97:333
98:1092 99:41 100:34 101:443 103:3789 105:531
106:143 107:230 108:520 109:1997 110:965 111:1120
112:579 113:800 114:743 115:1033 116:1009 117:810
118:1218 119:1283 120:367 121:748 122:1830 123:1267
124:1335 125:1471 128:600 129:223 130:339 131:660
132:344 133:158 134:296 135:72 136:269 137:265
138:351 139:168 140:171 141:342 142:537 143:400
144:496 145:90 146:541 147:425 148:725 149:368
150:154 151:486 152:415 153:207 154:46 155:516
156:303 157:368 158:283 159:696 160:362 161:458
162:897 163:204 164:625 165:576 166:276 167:637
168:1036 169:123 170:1127 171:185 172:11 173:1637
174:647 175:523 176:1315 177:2495 178:1875 179:315
180:1626 181:881 182:1402 183:479 184:622 185:1110
186:2647 187:1442 188:1961 189:1253 190:7297 192:7011
193:5461 194:4029 195:3379 196:1340 197:1052 198:4711
199:5442 200:6040 201:2524 202:8862 203:8944 204:4440
205:2626 206:2795 207:2727 208:3956 209:3634 210:2973
211:1607 212:2172 213:1991 214:888 215:84 216:5365
217:1712 218:631 219:313 220:1265 221:587 222:329
223:551

End of report
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